Thomas L. Jennings
Public Domain1791–1859
The first African American U.S. patent recipientThomas L. Jennings was working as a tailor and businessman in New York City when he invented a process for dry-cleaning delicate clothing known as “dry-scouring.” Jennings applied for a patent in 1820 and received his history-making approval the following year. With the money he earned from his inventionthe formerly enslaved inventor donated to abolitionist causes and even reportedly freed his still-enslaved family members.
Elijah McCoy
Henry Ford Collection/Public Domain1844-1929
Of the 57 patents Elijah McCoy—reportedly the namesake for the complimentary phrase “the real McCoy”—received over his lifetimethe portable ironing board might be one of the most timeless. As the story goeshaving to iron on uneven surfaces frustrated his wifeMary Eleanor Delaneyand so he created the ironing board to make her life a little easier. McCoy received the patent for this particular creation in May 1874. He is also the man behind another major invention beloved by homeowners: the lawn sprinkler.
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Sarah Boone
Public Domain1832-1904
Dressmaker Sarah Boone made a substantial design improvement to McCoy’s ironing boardadding a padded surface and smaller rounded end. Boone wrote in her patent application that the purpose of her invention was “to produce a cheapsimpleconvenientand highly effective deviceparticularly adapted to be used in ironing the sleeves and bodies of ladies’ garments.” In 1892she became one of the first African American women to be awarded a patent.
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Alexander Miles
Public Domain1838-1918
Anyone who’s ridden modern elevators has Alexander Miles to thank for the stair alternative’s automatic doors. Prior to his design’s 1867 patentriders had to manually open and close two sets of doors when entering and exiting elevator cars. If a passenger happened to forget to close one of the doorssubsequent elevator riders risked a potentially fatal fall down the elevator shaft. Becauseas the adage goesnecessity is the mother of inventionMiles created a mechanism that forced both elevator doors to close simultaneouslythus preventing dangerous accidents.
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Madam C.J. Walker
Getty Images1867-1919
Philanthropist and entrepreneur Madam C.J. Walker was born to formerly enslaved sharecroppers and orphaned at just 7 years old. After later suffering hair loss from a scalp conditionWalker invented an innovative line of Black hair care products in 1905 that led to her distinction as one of America’s first self-made millionaires. Her highly successful cosmetics brand is still around today.
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Related: How Madam C.J. Walker Invented Her Hair Care Products
Garrett Morgan
Getty Images1877-1963
Garrett Morgan was a prolific Black inventor whose early patent for an improved sewing machine design provided financial security for him and his family. But the Kentucky native was also concerned about the welfare of others. His “safety hood,” patented in 1914was a breathing device that filtered out harmful elements and became the prototype for the World War I–era gas mask. He also created a more sophisticated traffic signal by adding a warning lightsimilar to what we use on streets today.
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Frederick McKinley Jones
Getty Images1893-1961
Before Frederick McKinley Jones developed the automatic refrigeration equipment used in long-haul trucks that transport perishables in the late 1940sthe only way to keep food cold en route to delivery destinations was by using ice. Thanks to his inventiongrocery stores were able to buy and sell products—many of which you probably purchase regularly—from far distances without the risk of them spoiling during transport. Jones’ technology was also used to transport blood during World War II.
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Related: 40 Famous Inventors Who Made Their Mark on History
Alice H. Parker
Alamy1895-1920
The central heating furnace design that Alice H. Parker patented in December 1919 made use of natural gas for the first time to keep homes warm and toasty. Inspiring her innovation: the limited efficiency of fireplacesalong with the smoke and ash they produceduring the cold winters at her house in MorristownNew Jersey. Most modern homes still employ a similar forced air heating system for which her idea was a precursor.
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Marie van Brittan Brown
creative commons1922-1999
New York City native Marie Van Brittan Brown created an early version of the modern home security system. Feeling unsafe due to her neighborhood’s high crime ratethe full-time nurse rigged a motorized camera to record her home entryway and project images onto a TV monitor. Also included in her setup was a two-way microphone in order to communicate with visitors without opening the dooras well as a panic button to notify police of any potential emergency in progress. After filing to patent the closed circuit TV security system in 1966Brown received her approval in December 1969.
Patricia Bath
Getty Images1942-2019
A true visionaryPatricia Bath became the first Black female doctor to receive a medical patent when she invented a laser cataract treatment device called a Laserphaco Probe in 1986. It was one of several firsts the ophthalmologist achieved. The co-founder of the American Institute for the Prevention of Blindness patented her invention in 1988. Now used around the worldBath’s device has improved sight for millions of people.
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Related: These Black Doctors and Nurses Broke New Ground in Health Care
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Mark Dean
AP1957-present
We have Mark Dean to thank for several computer innovations that we might take for granted today. The color PC monitorwhich you might be using right nowis just one of them. With more than 20 patents to his nameDean also led the IBM team that created the first gigahertz chip—a groundbreaking innovation that can handle a billion calculations per second—and co-created a system to allow peripheral devices like monitors and printers to plug directly into computers.
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Adrienne directs the daily news operation and content production for Biography.com. She joined the staff in October 2022 and most recently worked as an editor for Popular MechanicsRunner’s Worldand Bicycling. Adrienne has served as editor-in-chief of two regional print magazinesand her work has won several awardsincluding the Best Explanatory Journalism award from the Alliance of Area Business Publishers. Her current working theory is that people are the point of lifeand she’s fascinated by everyone who (and every system that) creates our societal norms. When she’s not behind the news deskfind her hikingworking on her latest cocktail projector eating mint chocolate chip ice cream.

Catherine Caruso joined the Biography.com staff in August 2024having previously worked as a freelance journalist for several years. She is a graduate of Syracuse Universitywhere she studied English literature. When she’s not working on a new storyyou can find her readinghitting the gymor watching too much TV.
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